2-aminoethylthiol Substituted Cobalt and Manganese Phthalocyanines: Spectroscopic and Electrochemical Investigations

Spectroscopic and electrochemical properties of 4-(2-aminoethylthio phthalocyanato complexes of cobalt (complex 3) and manganese (complex 4) are investigated in this work. The UV-Vis spectral properties of the complexes were typical of the nature of central metal (cobalt versus manganese) phthalocyanine. The Q-band of manganese 4-(2-aminoethylthio) phthalocyanine is red shifted with respect to cobalt manganese 4-(2-aminoethylthio) phthalocyanine. Solution electrochemistry of complex 3 showed three distinctly resolved redox....

The 2022 Conservative leadership campaign and post-racial gatekeeping

The Conservative party leadership contest that took place in the summer of 2022 was unprecedented for, amongst other things, its level of ethnic diversity. This paper argues that this doesn’t indicate a sharp, contemporary liberal turn within the party. It argues the opposite, in fact, that recent senior ethnic minority cabinet members and leadership contenders represent some of the party’s most right-wing ideologues in years. Through critical discourse analysis of narrative related to race, borders, immigration and the ‘nation’ in selected media appearances made by ethnic minority leadership contenders Rishi Sunak, Sajid Javid, Nadhim Zahawi, Suella Braverman and Kemi Badenoch as part of their campaigns, this paper positions these individuals – in distinct yet interrelated ways – as ethnic minority post-racial gatekeepers, continuing yet intensifying a long trend within the Conservative party of the reproduction of the racial status quo legitimised through nominal ethnic minority representation

Application of PowerPoint Presentation in Managing Writing Skills in Large English Language Teaching Classes

The study examined the need for inculcating the application of Power Point Presentation in managing writing skills in large classes at College of Education, Ikere-Ekiti.  The Schools of Education and Languages were used for this study.  The sampled population included one hundred students in each of the Schools.  A total of two hundred students were randomly selected as samples.  Simple random sampling technique was used to distribute one hundred students into the Control Group and one hundred students into the Experimental Group.  A total number of two hundred copies of Achievement Multi-Choice Tests were administered on the students as pre-test before the commencement of the study and as post-test after six weeks of intensive teaching of the experimental and control groups by the researchers.  Data were collected using as standard and reliable marking guide.   The data collected using Analysis of Variance (ANOVA).  The null hypothesis was tested at 0.05 level of significance.  The findings of the study revealed that students perform better when taught with power point presentation. It was equally discovered through the study that gender plays little of no role in the achievement of students in power point presentation. Keywords:  ICT, Writing Skills, Large Classes, ELT. DOI: 10.7176/JLLL/68-04 Publication date:May 31st 202

Prosecutorial Misconduct in Capital Cases in the Commonwealth of Kentucky: A Research Study 1976-2000

The prosecutor wields tremendous power within the American criminal justice system. When that power is misuesed-particularly in capital cases-tremendous injustices are perpretrated. Yet, occurrences of prosecutorial misconduct seem to occur with distressing reqularity

Insights into the use and affordances of social and collaborative applications for student projects

The use of social and collaborative computing has the potential of assisting learning and improving the ability to work together as part of a team. Team work is a graduate attribute that students need to acquire before transitioning from university into the workplace. The aim of this exploratory research was to provide insights into the use of social and collaborative applications by Computer Science students, and the emergent affordances student project teams have created with the use of these applications. It answers the questions: What elearning platforms or applications do students use to collaborate for team projects? What technology affordance draws students to use these applications? This study adopts affordance theory as the theoretical framework. Two types of content analysis: conventional content analysis and summative content analysis were used to analyse the data. Data was gathered using a pre-designed questionnaire with the teams during the first semester of 2016. Findings show that the university’s elearning platform is utilised for some of their courses; however students seem to prefer free and open source platforms. Student project teams used applications such as WhatsApp, Telegram, Dropbox, Google Drive, Google Docs, as well as email messages, to work jointly, and were successfully able to complete their team projects. Four types of technology affordances: communicative-affordance, document share-affordance, course resource-affordance, and integrity-affordance, were identified as being relevant

Antifungal activity of extracts of Ocimum gratissimum and Aframomum danielli against moulds isolated from stored rice

The fungitoxic effect of extracts of Ocimum gratissimum and Aframomum danielli on some moulds isolated from rice grains were determined in vitro. Aqueous extracts of Aframomum danielli inhibited the radial growth of the moulds at different levels between 46.4 - 56.7%. Aspergillus niger (56.7%) was the most sensitive to Aframomum danielli while Cladosporium sphaerospermum (46.4%) was the least sensitive. Ocimum gratissimum extract inhibited the radial growth of the moulds between 46.4 – 59.7% with Penicillium citrinum showing the highest sensitivity and C. sphaerospermum being the least sensitive. There was no significant difference (p>0.05) in the effect of Ocimum gratissimum and Aframomum danielli on all the moulds. Ocimum gratissimum showed the greater antifungal activity against the storage fungi (mean = 53.4%) compared to Aframomum danielli (mean = 51.9%). However, there was no significant difference (p>0.05) in the effect  of Ocimum gratissimum and Aframomum danielli on the storage fungi. Both plant products showed varying levels of fungitoxic activities and could be potentially used in the storage of Ofada and Abakaliki rice against moulds. Keywords: Plant extracts, Antifungal activity, Storage fungi, Moulds, Ric

Use of Social Networking Sites (SNS) by Undergraduates of Federal University Oye Ekiti, Nigeria

Purpose: The revolution of social networking sites (SNS) is a global phenomenon, and has become an inseparable part of daily activities, especially among university students. This study examined pattern of use of SNS by undergraduates of Federal University Oye-Ekiti (FUOYE), Nigeria. Design/methodology/approach: The study employed descriptive survey research design. Multistage sampling procedure was employed to select sample from the total population. The questionnaire method was used as instrument of data collection. Descriptive statistical tools of frequency count, percentage and mean score were employed for the data analysis.Findings: Findings revealed that 98.3% of respondents used Facebook, 95.1% Whatsapp and 86.1% YouTube. For intensity of use, Whatsapp, Facebook, YouTube and Twitter were the most frequently used SNS. The SNS were used more for non-academic engagements (social interactions and daily activities) than for academic related purposes. The students spent average of 4.8 hours per day on SNS. Identified challenges were lack of efficient internet access and too much time spent using SNS. Originality/value: The paper provides useful empirical insight unique to FUOYE on usage of SNS by undergraduates

MICROORGANISMS ASSOCIATED WITH THE PALMS OF FAST-FOOD HANDLERS IN ABEOKUTA, NIGERIA

The palms of 87 food vendors in Abeokuta metropolis were sampled for the presence and types of         microorganisms. The food handlers were grouped into six categories based on the type of vending         sites: hawkers (15), roadside (13), open air (15), closed / roofed (21), restaurants (12) and hotels ven-         dors (11). Only 43.7% of the 87 vendors sampled had undergone the annual medical check up while         56.3% had never done the check up. None of the hawkers sampled had ever done the medical check         up while all the hotel food handlers had the health certificate indicating that they have done the routine         medical   check   up.   Bacteria   isolated   from   the   hands   of   the   food   handlers   included  Staphylococcus         aureus, S. epidermidis, Alcaligenes spp. Bacillus subtilis, Listeria spp. Enterobacter sp, Escherichia         coli, Klebsiella aerogenes, Proteus vulgaris and  Vibrio cholerae. The fungi were Rhizopus sp. Asper-         gillus   niger  and  Sachharomyces   cerevisiae.  This   work   suggests   that   food   handlers   were   possible         sources of microorganisms implicated in food poisoning and food spoilage. Proper policing of vendors        to ensure that they undergo the annual physical and medical examinations and proper education of        food handlers on personal hygiene is recommended.&nbsp

EVALUATION OF THE HAEMOLYMPH OF THE GIANT AFRICAN LAND SNAILS Achatina achatina AND Archachatina marginata FOR BACTERIA STERILITY AND INHIBITORY PROPERTIES

An experiment was conducted to examine bacteria sterility and bacteria inhibitory properties of haemolymph of two species of Giant African Land Snails. A total number of 18 A. achatina and A. marginata snails each were used for this experiment. The shell and foot of the snails were washed with distilled water for isolation of bacteria flora and bacteria load. The experiment was a 2 x 2 x 3 factorial arrangement with 3 replicates in a completely randomized design. To isolate bacteria, a sterile inoculating loop was used to pick a portion of each dissimilar colony and transferred into another appropriate fresh sterile medium in a culture plate and streaked in a quadrant streak plate method to obtain pure cultures of the isolates. The method was aimed at trimming down the microbial load to allow for isolates to grow in pure cultures. The plates were incubated at 37 0C for 24 hours, after which the pure isolates were observed and inoculated into McCartney bottles containing nutrient agar slants. The bottles were incubated for 24 hours at 37 0C and stored in the refrigerator for further biochemical analysis. Haemolymph of the two species studied was not sterile irrespective of the type of haemolymph. To test for haemolymph inhibitory properties, Haemolymph was collected from each snail into sterile and labeled containers in the laminar flow chamber. Microorganism was seeded into the agar plate, after the agar has solidified, holes were bored into the agar using a sterilized hole borer. One ml of the haemolymph collected was poured into each well in agar plates and incubated at 37 0C for 24 hours observing for zones inhibition. Equally, there was no evidence of bacteria inhibition by the haemolymph despite the three methods of bacteria inhibition used: agar diffusion method, disk diffusion method and serial diffusion method. It could be concluded from this study that the haemolymph of the two snail species did not exhibit bacteria sterility and inhibition.Â